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← ScienceWhich consequence results when a zeolite catalyst's pore structure degrades during Fischer-Tropsch synthesis?
A)Hydrocarbon chain growth is inhibited✓
B)Increased methane selectivity is promoted
C)CO conversion achieves thermodynamic limit
D)Water-gas shift equilibrium shifts favorably
💡 Explanation
When the pore structure degrades, diffusion limitations increase, hindering long-chain hydrocarbon formation because steric hindrance prevents longer molecules within the catalyst, therefore chain growth stops rather than methane formation occurring.
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